diff --git a/fluent_contents/tests/test_admin.py b/fluent_contents/tests/test_admin.py
index 26fdc19f..6abd273c 100644
--- a/fluent_contents/tests/test_admin.py
+++ b/fluent_contents/tests/test_admin.py
@@ -111,7 +111,7 @@ def test_copy_language_backend(self):
         self.assertTrue('AA' in data['formset_forms'][0]['html'])
 
     def _get_request(self, url, data=None):
-        request = self.factory.post(url, data=data)
+        request = self.factory.post(url, data=data or {})
         request.csrf_processing_done = True
         request.session = {}
         request.user = self.admin_user